Cenozoic

Cretaceous

Jurassic

Triassic

Permian

Carboniferous

Devonian

Silurian

Ordovician

Cambrian

Neoproterozoic

Main source = Baratov, R.B., et al. (1976). Subdivisions of stratified and intrusive rocks of Tajikistan. Publishing House "Donish", Dushanbe, 269 pp. plus tables. Provided by Dr. Jovid Aminov, Nazarbayev University, Astana, Kazakhstan Translated to English by the GeoGPT group, Zhejiang Lab, Hangzhou, China--see About

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Momudzhilgin Formation

Momudzhilgin Fm

Period:

Permian

Age Interval:

Middle Permian (Pk-p), E-Psh1-3

Province:
East Tajik (East Pamir)

Type Locality and Naming

Includes in East Pshart, East Pshart (southern slope), East Pshart (Agadjan river basin). It is identified in 1968 by V.I. Dranov.

Synonym: Momu Dzhilginskaya formation

Reference section:

Lithology and Thickness

90 m thick, is composed of gray debris-detrital limestones, clay slates, claystones, sandstones, and colorful cherts

Lithology Pattern:

Clayey limestone

Relationships and Distribution

Lower contact

conformably overlie the terrigenous suite, which relates to the Carboniferous - Ulyuk horizon of the lower division of the Permian (see the description of the Bazardarin Fm (базардаринской свиты).

Upper contact

Shiberdzhilgin Fm

Regional extent

They outcrop in the watershed and on the northern slope of the eastern part of the Shart Range.

GeoJSON

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Fossils

In the limestones are enclosed foraminifera of the Kuberkandinsky horizon - Misellina sp., Cancellina sp., Armenina sp.; of the Murgab - Neoschwagerina haydeni Dutk., N. simplex Ozawa, etc., and of the Pamir horizon - Codonofusiella sp., Reichelina sp., Rauserella sp., etc. (determined by B.M. Gushin).

Age

Middle Permian?

Age Span:

Beginning stage:

Roadian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

274.37

Ending stage:

Capitanian

Fraction up in the ending stage:

1.0

Ending date (Ma):

259.55

Depositional setting

Depositional pattern:

Additional Information

Compiler:

Extracted from Baratov, R. B. (1976). Subdivisions of stratified and intrusive rocks of Tajikistan. Donish, Dushanbe, 276.